yahoNanJing commented on PR #5866:
URL: 
https://github.com/apache/arrow-datafusion/pull/5866#issuecomment-1502623259

   Hi @Dandandan, @andygrove, @alamb, do you still have any concerns for this 
PR? At my side, this PR can achieve around 20% performance improvement for q17 
with single partition. It would be better to merge this PR first and then 
continue other bottleneck refining :)


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